Electronics Letters
Electronics Letters > 1990 > 26 > 21 > 1759 - 1761
Electronics Letters > 1990 > 26 > 22 > 1871 - 1873
Electronics Letters > 1990 > 26 > 22 > 1836 - 1838
Electronics Letters > 1990 > 26 > 21 > 1759 - 1761
Electronics Letters > 1990 > 26 > 22 > 1871 - 1873
Electronics Letters > 1990 > 26 > 22 > 1836 - 1838